black2000xj

did the upgrade, last night driving home i had no high beams.....pulled into my driveway and just like that, they worked.

Any ideas...my first thought was a bad ground? where should i start looking


*headlights are sylvania silverstars

DaBeebs84

check the plugs on the harness.....there is most likely a loose wire. I had to re-crimp them. All is good since then

jtodaro

Also, since you were over near the drivers side headlight, check the factory harness connector under the airbox, just to make sure you didn't pull/wiggle that enough to cause an issue. My 96 had broken most of the wires off at the headlight side connector from years of weathering.

cruiser54

There’s a critical 10-pin connector for the front lighting system located in front of the air cleaner and behind the left headlight assembly.

98REDXJ2

im currently in this situation my highs dont work at all but lows do I just recently ordered the H4 wire kit andhave not installed it yet. currently stumped on what is wrong..

macgyver35

Maybe you have the same problem I had. After I installed my harness, I would have intermittent issues with the lights. Checked all the connections and everything looked good. Upon much closer inspection, the positive trigger wire for the relay was mis-crimped. It was up in the pigtail socket, but the wire was cut wrong and the actual metal connector wasn't making contact with the wire. Pulled it out, re-crimped, and everything has been fine since.

jtodaro

My advise to both of you. First ask yourself one question. Did your highs work before you did the H4 Harness swap and/or were you having problems before? Answering this question will allow you to narrow down where the problem is. If the problem was introduced with the H4 Harness, first swap back to the original setup, and see if the problem goes away, if it doesn't, then look at the connector I mentioned (which Cruiser re-mentioned, as I learned about this thing from him when I had a similar issue).